Thread: 4L60E or TH400
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Old 12-06-2012, 10:27 AM   #3
99-LS1-SS
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Location: Oak Ridge NC
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Re: 4L60E or TH400

IF I'm not mistaken the 4L60E is based off of the TH350 and the 4L80E is based off of the TH400. If strength is a consideration I would go with a TH400 if mileage is the consideration then the 4L60E.
This is just MY personal opinion so take it for what it is worth. I have never been impressed with the strength or durability of the 4L60E. If it was up to me I would go with the 4L80E. It will handle more power and abuse and it should last longer.
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